ID 111504
Author
Tanaka, Hisako The University of Tokushima
Sei, Masako The University of Tokushima
Binh, Tran Quang The University of Tokushima|National Institute of Hygiene and Epidemiology
Munakata, Hokuma The University of Tokushima
Yuasa, Kyoko The University of Tokushima
Nakahori, Yutaka The University of Tokushima
Keywords
month of birth
height
weight
degree of obesity
schoolchildren
Content Type
Journal Article
Description
Month and season of birth are thought to influence height, weight and degree of obesity in schoolchildren. A cross-sectional study was designed to measure the height and weight of all children aged 6-15 years attending primary and junior high schools in Tokushima Prefecture, Japan. Data were standardized (z-scores) and analysed separately by gender and age. The mean z-score for height and weight were the highest in subjects born during the months of spring and the lowest in those born during the months of winter (p < 0.0001), whereas the means were significantly higher in children born during the months of summer than in those born during the months of autumn (p < 0.0001). A gradually decreasing trend of height and weight was observed in children of both genders born between May and Mar (from spring to winter). There was no significant difference in degree of obesity among the four seasons of birth for boys and girls. The highest prevalence of obese boys have born during spring (among 6-year-old boys) and summer (among 7-year-old boys), whereas the highest prevalence of obese girls have born during spring (among 6-year-old girls) and winter (among 10-year-old girls). Our findings suggest that month and season of birth influence height and weight of schoolchildren in Tokushima but not their degree of obesity.
Journal Title
The Journal of Medical Investigation
ISSN
13496867
13431420
NCID
AA11166929
AA12022913
Publisher
Faculty of Medicine Tokushima University
Volume
54
Issue
1-2
Start Page
133
End Page
139
Sort Key
133
Published Date
2007-02
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher